Unreal incompatible with Visual Studio 2017 15.9.37

There is no project technically, visual studio states ue4 is incompatible.

“the application is not installed”

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Here’s a solution for anyone stumbling upon the same problem.
If you have multiple Visual Studios (e.g. 2022, 2019, 2017) installed it will pick the latest one.
To compile 4.27 you need to install VS2017. After that modify BuildConfiguration.xml file in your UnrealEngine repo to use VS2017:

<?xml version="1.0" encoding="utf-8" ?>
         <Configuration xmlns="https://www.unrealengine.com/BuildConfiguration">
           <ProjectFileGenerator>
             <Format>VisualStudio2017</Format>
           </ProjectFileGenerator>
         </Configuration>

Run GenerateProjectFiles.bat script to regenerate the solution.

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